Shuttle tension



Patented June 1.2, 1923.

UNITED STA ES wrrnrAr/rcenova, or ra rnnson, new JERSEY.

, SHUTTLE @TENSION.

Application filecl Aug'ust 4,1922. SeriatNo, 579,592.

T 0 alien/tom it may concern: p I

Be it known that 1, WILLIAM GANOVA, a citizen of the United States, residingat Paterson, in the county of Passaic'and State of New Jersey, have invented certain new and useful Improvements in Shuttle Tensions, of which the following is a spec fication.

This invention relates to shuttle tensions, for example of the class in which there isa set of guides formed by pins arranged 1n the shuttle bod and another set guides, usually in the orm of a lever pivoted in the shuttle body, movable transversely of the filling into and out of alternation with the pins and normally held out of alternation therewith by elastic means so thatthe two sets coact normally to maintain the filling in Zig-zag arrangement. are usually driven with a tight fit into holes bored in the shuttle body, with their ends countersunk and covered by cement. The filling in time outs nicks in them and in order to replace them they have to be removed by an implement with a sharp edge which is inserted into such an opening as c in the annexed drawing and used to nick or burr them and then pry them endwise out of their holes. This is a tedious operation and it renders the pins unsuitable for further use on account of the nickingv or burring, even though they. might otherwise be reintroduced into their holes turned so as not to present the thread-formed nicks to the filling. Moreover, usually but a single removal of the pins enlarges the holes so much that they cannot be depended upon not to work out, which of course might do serious damage to the warp. The object of this invention is to provide a shuttle tension of the class indicated in which the set of guides formed by the pins will last with out becoming filling-nicked much longer than such guides as heretofore devised and which can be applied to any shuttle, even those already in use, without material expense or trouble.

In the drawing,

Fig. 1 is a plan view of a fragment of a shuttle embodying my invention;

Fig. 2 is a side elevation thereof, partly in section; and

Fig. 3 shows a plan and side elevation of a certain plate Z.

The pins.

Insaid drawing,a is a shuttle body, 6 is its cavity for the receptionof the filling package, and c the usual opening formed in the shuttle body from one side to theother thereof, (Z being a fillingpassage connecting qthecavity b and opening 0 and e the channel through which the filling A is delivered from the shuttle. f is the set of guides in the form of a lever pivoted at g, the guides proper projecting in a row from the shank of the lever in the usual way sothat they may take alternatinginterposed positions between the set of guides formed by the pins to be described. This lever is normally held in the position shown by a suitable elastic device it so that it bears against a surface 2'; it is adapted to be drawn more or less away from said surface by the filling when tensioned. WVhat has been so far described is all well known in the art.

The set of guides formed by the pins aforementioned is indicated'at j. This set of pins is, as usual, arranged in a row which converges toward the pivot end of the set of guides 7 when the latter is in its rest sition or abutting the surface 2'; but, as is freque-ntlythe case, there may be an addi-' tional pin in the set (as 7') arranged out of the row; topermit an extended bend to beputin the filling and thus increase the tension, if desired. For the reception of the pins there are drilled into the shuttle body from the top thereof the holes 70, they being closed at their lower ends, asby drilling short of the under side of the shuttle body. These holes are larger in diameter than the pins, which are received therein, as shown lodged from the holes by an impact applied at the top of the shuttle body, as by holdlng it in one hand and striking it against the other, and normally they will rattle in the'holes when the shuttle is'shaken.

For maintaining the pins in the holes there is provided a plate Z common to all of them and secured to the top face of the shuttle body by the screws m, but preferably in such manner that it does not interfere with the perfectly free rotation of the pins. In the preferredconstruction a recess n is formed in the shuttle body for the reeeption of this plate so that its exposed surface Will be flush with the top surface of the shuttle body. I

By my construction the pins revolve With prefect freedom in response to the very delieate tractive action of the filling, so that nicks are formed "therein only after very long use of the shuttle, the revolutionary shifting of the pins being enhanced by the actual lateral lost-motion'which they have in the holes. \Vhen for any reason any of the pins' requires to be replaoedwith a new one, having removedthe plate Z" the operator can dislodge the pins in theway'explainedwithoutany implement.

My invention can be readily and inexpensively applied to shuttles already in use, in \VlllCh case-1t 'is' only necessary to remove the pins thereof and insert a set which will be loose therein and then affix the retainingeplate Z. Y

Having thus fully described my invention, What I claim and desire to secure by Letters Patent is:

' In combination, a shuttle body having a set of substantially parallel elongated holes entering thereinto from one surface thereof, a set of'elongated'cylindrical pins freely revoluble and having transverse lost-motion in the holes and forming filling guides, and means at the 1 ends of the pins "to retain theln against displacement out of the holes,

"such 'means 'at one'end of each pin being re- "movable.

*In testimony whereof I afiix'm'y signature.

\VILLI'AM Y GANOVA. 

